From Surveillance to Sentencing: The Semiotics of Visual Evidence in Criminal Trials
摘要
This article examines the growing role of digital visual evidence in criminal proceedings, focusing on the semiotic, epistemological, and normative challenges it poses to judicial interpretation. In an era of omnipresent surveillance and ubiquitous recording devices, courts are increasingly confronted with visual materials such as CCTV footage, bodycam recordings, crime scene photographs, and social media videos. While these materials are often assumed to represent “objective” and “transparent” truths, this chapter critically interrogates that assumption by engaging with visual semiotics and narrative theory. Building on insights from legal theory, criminal procedure, and media studies, the article explores how courts perceive, contextualize, and evaluate visual representations of crime. It argues that visual evidence functions not merely as demonstrative proof but as a powerful narrative device, capable of shaping perceptions of guilt, intention, and emotion—often bypassing verbal scrutiny. The image, rather than speaking for itself, demands interpretation, and that interpretive process is deeply embedded in cultural, legal, and rhetorical frameworks. Visual evidence does not reduce interpretive labour; it relocates it from language to perception. The courtroom therefore shifts from a primarily discursive arena to a space in which perceptual persuasion and semiotic framing become central to fact-finding. The article analyzes selected domestic and international case law to illustrate how visual materials have influenced evidentiary assessments and courtroom dynamics. Special attention is given to issues such as emotional bias, the illusion of objectivity, deepfakes, and the performative aspects of courtroom presentations involving imagery. Furthermore, it addresses the asymmetry between the immediacy of visual content and the procedural safeguards traditionally grounded in textual evidence. Ultimately, the article calls for a more reflexive approach to visual evidence—one that acknowledges its interpretive instability while developing procedural standards to ensure fairness and transparency. By bridging semiotics and legal practice, the article contributes to a broader understanding of how images are reshaping the evidentiary and communicative landscape of criminal justice in post-textual legal cultures.